Pencil-sharpener



D R 0 P h A T S H T PENCIL SHARPENER.

No. 390,410.- Patented Oct. 2, 1888.

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u. Pmans PhuXD-Lnmgnpller, Washington. D. c.

' UNTTE STATES PATENT Truce.

THOMAS H. STAFFORD, OF CONCORD, NEW HAMPSHIRE.

Panorama/rescues.

SPECIFICATION forming part of Letters Patent No. 390,410, dated October2, 18188.

Application filed January 16, 1888. Serial No. 260,845.

To aZZ whom it may concern:

Be it known that I, Tnorrns H. STAFFORD, a citizen of the United States,residing at Ooucord, in the county of Merrimac and State of NewHampshire, have invented certain new and useful Improvements inPencil-Sharpeners, of which the following is a specification.

This invention relates to that class of pencil-sharpeners having twocutters calculated to make a drawing out on opposite sides of a pencil.

The invention consists of a hinged frame provided at its free ends withhinged cutters carrying guide-rolls adapted to gage the cut.

The accompanying drawings, forming part of this specification, clearlyillustrate the devlce.

Figure 1 is an elevation. Fig. 2 is a view of the left side of Fig. 1,and Fig. 3 an elevation showing the reverse side of Fig. l; and Fig. 4shows a detached perspective view of one of the cutters.

Like letters indicate corresponding parts.

This entire device may be stamped from sheet metal (preferably steel)bent into the desired form and riveted together, as shown, one of thehinged parts A being provided with a hook, a, made somewhat in the formof a shield, for hanging the device on the vest pocket, and the other isprovided with aleverspring, a, either formed integral therewith orsoldered or riveted thereto, its free end being adapted to bear upon thetop of the opposite part A and serving the purpose of holding the saidparts A A closed against each other.

To the free ends of the parts A A are attached hinged cutters B, each ofwhich is provided forward of its cutting edge with rolls 0, which restupon a pencil while being sharpened. These rolls O are carried upon ashaft, 0, mounted at either end in arms 1), formed for this purpose uponthe cutters B. A hole, Z), is made in each arm I) at any desired point,through which the rivets D, connecting the cutters to the hinged framesor parts A A, are passed.

The cutting-edges b of the hinged cutters B may be ground parallel withthe roll 0, or on an an gle therewith, as represented in the d rawings.The latter form I consider preferable, as they do their work more easilywhile pass ing over the pencil at an angle.

No particular form for the hinged parts A A is essential, providing thattheir construe- (No model.)

tion is such as to admit a pencil between them,

as shown by dotted lines in Fig. 2, in which position. a pencil is heldwhen not in use by the pressure of the cutters. \Vhen in Opera tion,however, the pencil is inserted between the cutters B, as seen in Fig.1, in which View the end of a pencil is shown in dotted lines, and eachtime the said pencil is withdrawn the opposite sides of the same are cutby the contraction or drawing together of the cutters. The hinged partsA A are also provided with the arms E E, the latter having its end bentat a right angle. as at c, and slotted for the reception of arm E, asseen in Fig. 3, thus serving to strengthen the parts A A at the pivotalconnection.

The construction of the cutters B may be somewhat modified, if desired,by changing the position of the rolls 0 to the rear instead of forwardof the cuttingedge of said cutters; or two rolls may be applied, one infront and one at the rear. Either of these constructions will accomplishthe object of this particular feature of the invention, however, whichis to guide the cutters and somewhat gage their cut.

Having described my inventiomwhatl claim as new, and desire topatent,is-

1. In a pencil-sharpener, the hinged cutterframes and pivotal knivesattached to their free end, provided with guide-rolls, all substantiallyfor the purpose set forth.

2. In a pencilsharpener, the pivoted cutter-fram es, swivel-euttersattached thereto and adapted to make a tapering cut on opposite sides ofa pencil, and guide-rolls connected to said cutters in a mannercalculated to regulate their cut, all arranged substantially for thepurpose described.

3. The pivoted cutter-frames, a spring :for inclining them toward eachother, swivel-cutters attached thereto adapted to make a tapering cut onopposite sides ofa pencil, and guiderolls secured to said cutters, thecutting-edges of said cutters being ground at an angle with saidguide-rolls and in opposite directions one with the other, substantiallyfor the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS H. STAFFORD.

